Land reclamation project detection device

Abstract

The invention relates to the technical field of land reclamation, in particular to a land reclamation project detection device which comprises a fixing frame, a fixing plate is arranged at the bottom of the fixing frame, a sampling opening is formed in the fixing plate, a mounting plate and a sampling assembly are arranged in the fixing frame, the sampling assembly comprises a sampling pipe, and a sealing pipe is arranged in the sampling pipe. The outer wall of the sealing pipe is attached to the inner wall of the sampling pipe, a connector is arranged at the upper end of the sealing pipe, a connecting pipe is connected to the upper end of the sampling pipe, a material taking hole is formed in the mounting plate, a supporting plate is arranged on the mounting plate, an oscillator is mounted on the supporting plate, the supporting plate is slidably connected with the mounting plate, and a connecting rod matched with the connecting pipe is arranged at the bottom of the supporting plate. And a cutting assembly for cutting the sampling core is arranged in the sampling pipe. In this way, sampling of soil at the specified depth is achieved, that is, each layer of soil is stored in the sealing pipe according to the depth. The whole device is convenient for sampling detection of soil.

Description

Technical Field

[0001] The present invention relates to the technical field of land improvement, and in particular to a detection device for land improvement projects. Background Technique

[0002] Land improvement refers to the process of, within a certain area, according to the goals and uses determined by the overall land use plan, urban plan, and special land improvement plan, by taking administrative, economic, and legal means, applying engineering construction measures, through comprehensive improvement and development of fields, water, roads, forests, and villages, and implementing in-depth development of rural residential land that is improperly configured, unreasonably utilized, as well as scattered, idle, and not fully utilized, to improve the intensive utilization rate and output rate of land, and improve the production, living conditions, and ecological environment. Its essence is to rationally organize land use. Usually, during the process of land improvement projects, it is necessary to detect the land environment.

[0003] The prior art can refer to the Chinese patent application with the publication number CN118443364A, which discloses a detection device for land improvement projects, including a rod body, a soil sampling tube, a connecting plate, and fixing components. The connecting plate is vertically connected to one end of the rod body away from the soil sampling tube, and the rod body is located at the center of the connecting plate; there are two fixing components, and the two fixing components are respectively located on both symmetrical sides of the rod body; the fixing component includes a telescopic rod vertically connected to one end of the connecting plate, a support rod fixed to the other end of the telescopic rod, and a limiting plate vertically fixed to the support rod. The distance from the limiting plate to the bottom of the support rod is 3 - 5 cm.

[0004] Aiming at the above-mentioned prior art, when sampling soil through the soil sampling tube, it is difficult to take out the soil from the soil sampling tube, and the taken samples are soils mixed together from different layers. During the detection process, only the soil can be randomly clamped for overall detection. Although the detection efficiency is relatively fast, the overall detection cannot completely obtain the nutrient data of each layer of soil. Summary of the Invention

[0005] In order to facilitate obtaining the soil of each layer, the present invention provides a detection device for land improvement projects.

[0006] The following technical scheme is adopted: A land improvement project detection device includes a fixing frame. A fixing plate is arranged at the bottom of the fixing frame. A sampling port is opened on the fixing plate. An installation plate and a sampling component are arranged inside the fixing frame. The sampling component includes a sampling tube. The sampling tube passes through the sampling port and is arranged vertically. A sealing tube is arranged inside the sampling tube. The outer wall of the sealing tube fits with the inner wall of the sampling tube. A connecting head is arranged at the upper end of the sealing tube. A connecting pipe is connected to the upper end of the sampling tube. A material taking hole located above the sampling tube is opened on the installation plate. A supporting plate located above the material taking hole is arranged on the installation plate. A vibration generator is installed on the supporting plate. The supporting plate is slidably connected to the installation plate. A connecting rod matching with the connecting pipe is arranged at the bottom of the supporting plate. A cutting component for cutting the sampling core is arranged inside the sampling tube.

[0007] By adopting the above technical solutions, move the fixing frame to the sampling position; pass the sampling tube through the sampling port, and the end of the sampling tube contacts the soil surface; insert the connecting rod into the connecting pipe, start the vibration generator, and the installation plate drives the sampling tube to move downward through the connecting rod and the connecting pipe, and the soil is squeezed into the sealing tube; after the sampling tube is lowered to the specified depth, the vibration generator stops working. Cut off the soil below the sealing tube through the cutting component, and drive the sealing tube to move upward through the connecting head, so as to take out the sealing tube from the sampling tube, and complete the sampling of the soil at the specified depth, that is, the soil of each layer is stored in the sealing tube according to the depth. The whole is convenient for soil sampling and detection.

[0008] Optionally, the cutting component includes two cutting plates and a first moving rod connected to the corresponding cutting plate. A connecting slot opening located below the sealing tube is opened on the inner wall of the bottom of the sampling tube. A placing slot opening below the connecting slot opening is opened inside the sampling tube. The cutting plates are located in the placing slot opening. A vertical slot opening communicating with the placing slot opening is opened vertically inside the sampling tube. The first moving rod is located in the vertical slot opening and is slidably connected to the sampling tube. The end of the first moving rod is connected to the cutting plate through a second moving rod. A moving slot opening communicating with the vertical slot opening and the connecting slot opening is opened on the inner wall of the sampling tube. The second moving rod can move along the moving slot opening.

[0009] By adopting the above technical solutions, after the sampling tube is lowered to the specified depth, the operator controls the two first moving rods to move towards the sealing tube, so that the two cutting plates cooperate with each other to cut off the soil below the sealing tube; then, the two sealing plates move into the sampling tube, the operator controls the two first moving rods to move upward, the two second moving rods move along the moving slot opening, and the two cutting plates lift the bottom of the sealing tube and move along the sampling tube to prevent the soil in the sealing tube from falling downward.

[0010] Optionally, an elastic spring is arranged in the placement notch. One end of the elastic spring is fixedly connected to the inner wall of the placement notch, and the other end abuts against the end face of the cutting plate. The elastic spring is in a compressed state in the placement notch.

[0011] By adopting the above technical solution, during the sampling process of the sampling tube, the cutting plate is located in the placement notch. The elastic spring exerts an upward acting force on the cutting plate. At the same time, since the connecting pipe at the top of the sampling tube abuts against the first moving rod, the connecting pipe can prevent the first moving rod from moving upward. After the sampling of the sampling tube is completed and the connecting pipe is detached from the sampling tube, the compressed elastic spring releases its elastic force and pushes the cutting plate upward. At the same time, the first moving rod extends out of the vertical notch, facilitating the operator to control the upward movement of the first moving rod.

[0012] Optionally, an external thread is provided at the upper end of the sampling tube. One end of the connecting pipe is threadedly connected to the sampling tube. A limiting groove is provided in the connecting pipe. A limiting block that cooperates with the limiting groove is arranged between the connecting pipe and the connecting head.

[0013] By adopting the above technical solution, the sampling tube is threadedly connected to the connecting pipe. The limiting block is limited through the limiting groove, and the position of the sealing pipe is limited through the limiting block.

[0014] Optionally, a support rod is arranged on the fixed plate. The support rod passes through the mounting plate and is slidably connected to the mounting plate. A lifting motor is arranged on the fixed frame. The output shaft of the lifting motor is coaxially and fixedly connected with a connecting wheel. A lifting rope is connected between the connecting wheel and the mounting plate.

[0015] By adopting the above technical solution, when the vibrator is working, the lifting motor does not work, and the output shaft of the lifting motor rotates naturally. The mounting plate can freely lift and lower. After the vibrator stops working, the lifting motor is started, the connecting wheel rotates, and the mounting plate can be moved upward through the lifting rope, so as to separate the connecting pipe from the connecting rod.

[0016] Optionally, a lifting cylinder is arranged on the fixed plate. The end of the piston rod of the lifting cylinder is fixedly connected with a connecting plate. A three-jaw chuck for clamping the sampling tube is arranged on the connecting plate.

[0017] By adopting the above technical solution, when the sampling of the sampling tube stops and the sampling tube needs to be pulled out of the soil, since the soil is extruded by the sampling tube, the soil exerts a pressure on the sampling tube. The sampling tube is clamped through the three-jaw chuck. The lifting cylinder is started, the connecting plate moves upward, and the sampling tube is pulled out of the soil through the three-jaw chuck.

[0018] The fixing plate is provided with a sliding rail, and a sliding block cooperating with the sliding rail is provided at the bottom of the support plate, and a fixing component for fixing the supporting plate is provided between the support plate and the mounting plate, and the fixing component includes a moving block, a moving gear and a fixing block, and a fixing groove cooperating with the fixing block is provided on one side of the sliding block, and the mounting plate is provided with a mounting groove connected with the slide rail, and the fixing block and the moving block are both located in the mounting groove and are slidably connected with the mounting plate, a first rack is provided on one side of the fixing block, and a second rack is provided on one side of the moving block, the moving gear is located between the moving block and the fixed block and is rotatably connected with the mounting plate, the moving gear is meshed with the first rack and the second rack, and a connecting spring is provided in the mounting groove, and one end of the connecting spring is fixedly connected to the inner wall of the mounting groove, and the other end is fixedly connected to the end of the moving block.

[0019] By adopting the above technical solution, when sampling is required, the support plate is moved to the top of the sampling tube, so that the connecting plate and the connecting rod are connected accordingly, and the fixing block is inserted into the fixing groove to fix the support plate and the mounting plate. When the support plate needs to be moved, the operator presses the moving block, the connecting spring is compressed, the moving gear is driven to rotate through the second rack, and the fixing block is driven to disengage from the fixing groove through the first rack, so that the support plate can be moved on the mounting plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. Move the fixed frame to the sampling position, pass the sampling tube through the sampling port, and make the end of the sampling tube contact the soil surface; insert the connecting rod into the connecting tube, start the vibrator, and the mounting plate drives the sampling tube to move downward through the connecting rod and the connecting tube, and the soil is squeezed into the sealed tube; after the sampling tube is lowered to the specified depth, the vibrator stops working, and the soil under the sealed tube is cut off through the cutting assembly; the sealed tube is driven to move upward through the connector, so that the sealed tube is taken out of the sampling tube, and the soil at the specified depth is sampled, that is, each layer of soil is stored in the sealed tube according to the depth, which is convenient for sampling and testing of the soil; 2. After the sampling tube descends to the specified depth, the operator moves the two first moving rods toward the sealing tube, so that the two cutting plates cooperate with each other to cut off the soil under the sealing tube; the two sealing plates move into the sampling tube, and the operator moves the two first moving rods upward, and the two second moving rods move along the moving grooves. The two cutting plates lift the bottom of the sealing tube and move along the sampling tube to prevent the soil in the sealing tube from falling downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection relationship between the connecting rod and the connecting pipe in the present invention; Figure 3 It is a schematic structural diagram of the fixing component in the present invention; Figure 4 It is Figure 2 an enlarged schematic diagram of part A in

[0022] In the figure: 1. Fixing frame; 11. Lifting motor; 12. Lifting rope; 13. Connecting wheel; 2. Sampling component; 21. Sampling tube; 211. Connecting notch; 212. Placing notch; 213. Vertical notch; 22. Connecting pipe; 221. Limiting block; 222. Limiting groove; 3. Fixed plate; 31. Sampling port; 32. Support rod; 4. Mounting plate; 41. Oscillator; 42. Connecting rod; 43. Material taking hole; 44. Slide rail; 45. Mounting groove; 5. Sealing pipe; 51. Connector; 6. Connecting plate; 61. Lifting cylinder; 62. Three-jaw chuck; 7. Cutting component; 71. Cutting plate; 72. First moving rod; 73. Second moving rod; 74. Elastic spring; 8. Support plate; 81. Slide block; 811. Fixed groove; 9. Fixing component; 91. Moving block; 911. Second rack; 92. Moving gear; 93. Fixed block; 931. First rack; 94. Connecting spring. Specific embodiments

[0023] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0024] Embodiment Referring to Figure 1 and Figure 2 , the present invention provides a land remediation project detection device, including a fixing frame 1 and a sampling component 2. A fixed plate 3 is provided at the bottom of the fixing frame 1, and a sampling port 31 is opened on the fixed plate 3. A mounting plate 4 is provided on the fixing frame 1. A support rod 32 is fixedly installed on the fixed plate 3 in the vertical direction. The support rod 32 passes through the mounting plate 4 and is slidably connected to the mounting plate 4. The sampling component 2 includes a sampling tube 21. The sampling tube 21 passes through the sampling port 31 and is vertically arranged. A sealing tube 5 is placed in the sampling tube 21. The outer wall of the sealing tube 5 fits with the inner wall of the sampling tube 21. A connector 51 is detachably connected to the upper end of the sealing tube 5. A connecting pipe 22 is connected to the upper end of the sampling tube 21. A material taking hole 43 located above the sampling tube 21 is opened on the mounting plate 4. A support plate 8 located above the material taking hole 43 is provided on the mounting plate 4. An oscillator 41 is installed on the support plate 8. The support plate 8 is slidably connected to the mounting plate 4. A connecting rod 42 matching the connecting pipe 22 is provided at the bottom of the support plate 8. Due to the influence of gravity, the mounting plate 4 and the connecting rod 42 can cause the connecting rod 42 to be inserted into the connecting pipe 22.

[0025] In use, move the fixing frame 1 to the sampling position, pass the sampling tube 21 through the sampling port 31, and make the end of the sampling tube 21 contact the soil surface; insert the connecting rod 42 into the connecting tube 22, start the vibrator 41, the vibrator 41 works, and the support plate 8 and the mounting plate 4 drive the sampling tube 21 to move downward through the connecting rod 42 and the connecting tube 22, and the soil is squeezed into the sealing tube 5; after the sampling tube 21 is lowered to the specified depth, the vibrator 41 stops working.

[0026] Refer to Figure 2 , an external thread is provided at the upper end of the sampling tube 21, one end of the connecting tube 22 is threadedly connected to the sampling tube 21, a limiting groove 222 is provided in the connecting tube 22, and a limiting block 221 matching the limiting groove 222 is provided between the connecting tube 22 and the connecting head 51. The sampling tube 21 is threadedly connected to the connecting tube 22. The limiting block 221 is limited through the limiting groove 222, and the position of the sealing tube 5 is limited through the limiting block 221.

[0027] Refer to Figure 1 and Figure 3 , a slide rail 44 is provided on the mounting plate 4, and a slider 81 matching the slide rail 44 is provided at the bottom of the support plate 8. When the mounting plate 4 moves upward, the connecting rod 42 can be separated from the connecting tube 22, and the support plate 8 can be moved away from above the sampling tube 21 through the slider 81 and the slide rail 44 so as to take out the sealing tube 5 in the sampling tube 21. A fixing component 9 for fixing the support plate 8 is provided between the support plate 8 and the mounting plate 4. The fixing component 9 includes a moving block 91, a moving gear 92 and a fixing block 93. A fixing groove 811 matching the fixing block 93 is provided on one side of the slider 81. The mounting plate 4 is provided with a mounting groove 45 communicating with the slide rail 44. The fixing block 93 and the moving block 91 are both located in the mounting groove 45 and are slidably connected to the mounting plate 4. A first rack 931 is provided on one side of the fixing block 93, a second rack 911 is provided on one side of the moving block 91, the moving gear 92 is located between the moving block 91 and the fixing block 93 and is rotatably connected to the mounting plate 4, the moving gear 92 meshes with the first rack 931 and the second rack 911, and a connecting spring 94 is provided in the mounting groove 45; one end of the connecting spring 94 is fixedly connected to the inner wall of the mounting groove 45, and the other end is fixedly connected to the end of the moving block 91.

[0028] When sampling work needs to be carried out, move the support plate 8 above the sampling tube 21, make the connecting plate 6 correspond to and connect with the connecting rod 42. At this time, the fixing block 93 is inserted into the fixing groove 811 to fix the support plate 8 and the mounting plate 4. When the support plate 8 needs to be moved, the operator presses the moving block 91, the connecting spring 94 is compressed, the moving gear 92 is driven to rotate through the second rack 911, and the fixing block 93 is driven to disengage from the fixing groove 811 through the first rack 931 so that the operator can control the movement of the support plate 8 on the mounting plate 4.

[0029] Refer to Figure 1 , a lifting motor 11 is installed on the fixing frame 1. The output shaft of the lifting motor 11 is coaxially and fixedly connected with a connecting wheel 13. A lifting rope 12 is connected between the connecting wheel 13 and the mounting plate 4. When the vibrator 41 is working, the lifting motor 11 does not work, and the output shaft of the lifting motor 11 is in a natural rotating state, and the mounting plate 4 can freely lift and lower; after the vibrator 41 stops working, the lifting motor 11 is started, the connecting wheel 13 rotates and can drive the mounting plate 4 to move upward through the lifting rope 12, so as to separate the connecting pipe 22 from the connecting rod 42.

[0030] Refer to Figure 1 , a lifting cylinder 61 is arranged on the fixing plate 3. The end of the piston rod of the lifting cylinder 61 is fixedly connected with a connecting plate 6. A three-jaw chuck 62 is installed on the connecting plate 6, and the sampling tube 21 is clamped by the three-jaw chuck 62. When the sampling tube 21 stops sampling and needs to be pulled out of the soil, since the soil is squeezed by the sampling tube 21, the soil exerts pressure on the sampling tube 21. The lifting cylinder 61 is started, the connecting plate 6 moves upward, and the sampling tube 21 is pulled out of the soil through the three-jaw chuck 62.

[0031] Refer to Figure 2 and Figure 4 , a cutting assembly 7 for cutting the sampling core is arranged in the sampling tube. The cutting assembly 7 includes two cutting plates 71 and a first moving rod 72 connected to the corresponding cutting plate 71. A connecting notch 211 is formed in the inner wall of the bottom of the sampling tube 21 below the sealing tube 5. A placing notch 212 is formed in the sampling tube 21 below the connecting notch 211. The cutting plate 71 is located in the placing notch 212. A vertical notch 213 communicating with the placing notch 212 is formed in the sampling tube 21 in the vertical direction. The first moving rod 72 is located in the vertical notch 213 and is slidably connected with the sampling tube 21. The end of the first moving rod 72 is connected to the cutting plate 71 through a second moving rod 73. A moving notch communicating with the vertical notch 213 and the connecting notch 211 is formed in the inner wall of the sampling tube 21. The second moving rod 73 can move along the moving notch. An elastic spring 74 is installed in the placing notch 212; one end of the elastic spring 74 is fixedly connected to the inner wall of the placing notch 212, and the other end abuts against the end face of the cutting plate 71. The elastic spring 74 is in a compressed state in the placing notch 212.

[0032] After the connecting pipe 22 is connected to the sampling pipe 21, the inner wall of the connecting pipe 22 fits against the vertical notch 213, and the connecting pipe 22 presses the first connecting rod 42 located in the vertical notch 213 downward, causing the cutting plate 71 to move downward in the placement notch 212. During the process of the sampling pipe 21 moving downward for sampling, the cutting plate 71 is located in the placement notch 212, and the elastic spring 74 exerts an upward force on the cutting plate 71. At the same time, the connecting pipe 22 abuts against the top of the first moving rod 72 to prevent the first moving rod 72 from moving upward. After the sampling process of the sampling pipe 21 is completed and the connecting pipe 22 is detached from the sampling pipe 21, the compressed elastic spring 74 releases its elastic force and pushes the cutting plate 71 upward. At the same time, the first moving rod 72 extends out of the vertical notch 213, so that the operator can control the first moving rod 72 to move upward.

[0033] After the sampling pipe 21 descends to the specified depth, the operator controls the two first moving rods 72 to move towards the sealing pipe 5, so that the two cutting plates 71 cooperate with each other to cut off the soil below the sealing pipe 5. At this time, the two cutting plates 71 move into the sampling pipe 21. The operator controls the two first moving rods 72 to move upward, and the two second moving rods 73 move along the moving notch. The two cutting plates 71 lift the bottom of the sealing pipe 5 and move along the sampling pipe 21 to prevent the soil in the sealing pipe 5 from falling downward.

[0034] Refer to Figure 2 , after the sealing pipe 5 is taken out of the sampling pipe, one end of the sealing pipe 5 is blocked by a sealing head, and the operator uses another sealing head to block the other end of the sealing pipe 5, so that the soil of each layer is stored in the sealing pipe 5 according to the depth, which is convenient for sampling and detecting the soil at the specified depth.

[0035] The working principle of the present invention is as follows: Move the fixed frame 1 to the sampling position, and the sampling pipe 21 passes through the sampling port 31 and makes the end of the sampling pipe 21 contact the soil surface; insert the connecting rod 42 into the connecting pipe 22, start the vibrator 41, and the mounting plate 4 drives the sampling pipe 21 to move downward through the connecting rod 42 and the connecting pipe 22, and the soil is squeezed into the sealing pipe 5. After the sampling pipe 21 descends to the specified depth, the vibrator 41 stops working. The operator controls the two first moving rods 72 to move towards the sealing pipe 5, so that the two cutting plates 71 cooperate with each other to cut off the soil below the sealing pipe 5, and the two sealing plates move into the sampling pipe 21; then, the operator controls the two first moving rods 72 to move upward, and the two second moving rods 73 move along the moving notch. The two cutting plates 71 lift the bottom of the sealing pipe 5 and move along the sampling pipe 21 to prevent the soil in the sealing pipe 5 from falling downward, so as to take out the sealing pipe 5 from the sampling pipe 21, realizing sampling of the soil at the specified depth, that is, the soil of each layer is stored in the sealing pipe 5 according to the depth, which is convenient for sampling and detecting the soil.

[0036] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A land improvement engineering detection device, comprising a fixing frame (1), characterized in that: A fixing plate (3) is arranged at the bottom of the fixing frame (1), a sampling port (31) is provided on the fixing plate (3), a mounting plate (4) and a sampling assembly (2) are arranged inside the fixing frame (1), the sampling assembly (2) comprises a sampling tube (21), the sampling tube (21) passes through the sampling port (31) and is arranged vertically, a sealing tube (5) is arranged inside the sampling tube (21), the outer wall of the sealing tube (5) is in contact with the inner wall of the sampling tube (21), a connector (51) is arranged at the upper end of the sealing tube (5), and the sampling tube (21) is connected to the inner wall of the sampling tube (21). ) is connected to a connecting tube (22) at its upper end, a material taking hole (43) located above the sampling tube (21) is formed on the mounting plate (4), a support plate (8) located above the material taking hole (43) is provided on the mounting plate (4), a vibrator (41) is installed on the support plate (8), the support plate (8) is slidably connected to the mounting plate (4), a connecting rod (42) cooperating with the connecting tube (22) is provided at the bottom of the support plate (8), and a cutting assembly (7) for cutting a sampling core is provided in the sampling tube (21).

2. A land improvement engineering detection device according to claim 1, characterized in that: The cutting assembly (7) comprises two cutting plates (71) and a first moving rod (72) connected to the corresponding cutting plates (71); a connecting notch (211) located below the sealing tube (5) is provided on the inner wall of the bottom of the sampling tube (21); a placement notch (212) located below the connecting notch (211) is provided in the sampling tube (21); the cutting plate (71) is located in the placement notch (212); a vertical notch (213) connected to the placement notch (212) is provided in the sampling tube (21) along the vertical direction; the first moving rod (72) is located in the vertical notch (213) and is slidably connected to the sampling tube (21); an end of the first moving rod (72) is connected to the cutting plate (71) via a second moving rod (73); a moving notch connected to the vertical notch (213) and the connecting notch (211) is provided on the inner wall of the sampling tube (21); and the second moving rod (73) is capable of moving along the moving notch.

3. A land improvement engineering detection device according to claim 2, characterized in that: An elastic spring (74) is disposed in the placement slot (212); one end of the elastic spring (74) is fixedly connected to the inner wall of the placement slot (212), and the other end abuts against the end surface of the cutting plate (71); the elastic spring (74) is in a compressed state in the placement slot (212).

4. A land improvement engineering detection device according to claim 1, characterized in that: The upper end of the sampling tube (21) is provided with an external thread, one end of the connecting tube (22) is threadedly connected to the sampling tube (21), a limiting groove (222) is provided in the connecting tube (22), and a limiting block (221) matching the limiting groove (222) is provided between the connecting tube (22) and the connecting head (51).

5. A land improvement engineering detection device according to claim 1, characterized in that: The fixing plate (3) is provided with a support rod (32), the support rod (32) passes through the mounting plate (4) and is slidably connected to the mounting plate (4), the fixing frame (1) is provided with a lifting motor (11), the output shaft of the lifting motor (11) is coaxially fixedly connected to a connecting wheel (13), and a lifting rope (12) is connected between the connecting wheel (13) and the mounting plate (4).

6. A land improvement engineering detection device according to claim 1, characterized in that: The fixed plate (3) is provided with a lifting cylinder (61), the piston rod end of the lifting cylinder (61) is fixedly connected to a connecting plate (6), and the connecting plate (6) is provided with a three-jaw chuck (62) for clamping the sampling tube (21).

7. A land improvement engineering detection device according to claim 1, characterized in that: The mounting plate (4) is provided with a slide rail (44), the bottom of the support plate (8) is provided with a slider (81) matched with the slide rail (44), a fixing assembly (9) for fixing the support plate (8) is provided between the support plate (8) and the mounting plate (4), the fixing assembly (9) comprising a moving block (91), a moving gear (92) and a fixing block (93), one side of the slider (81) is provided with a fixing groove (811) matched with the fixing block (93), the mounting plate (4) is provided with a mounting groove (45) connected with the slide rail (44), the fixing block (93) and the moving block (91) are both located at the mounting plate (4). The movable block (91) is provided with a first rack (931) on one side of the fixed block (93), and a second rack (911) on one side of the movable block (91). The movable gear (92) is located between the movable block (91) and the fixed block (93) and is rotatably connected to the mounting plate (4). The movable gear (92) is meshed with the first rack (931) and the second rack (911). A connecting spring (94) is provided in the mounting groove (45); one end of the connecting spring (94) is fixedly connected to the inner wall of the mounting groove (45), and the other end is fixedly connected to the end of the movable block (91).

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